TWI682815B - Orifice, liquid feeding device and coating device using the same, and method of manufacturing optical film - Google Patents

Orifice, liquid feeding device and coating device using the same, and method of manufacturing optical film Download PDF

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TWI682815B
TWI682815B TW105118070A TW105118070A TWI682815B TW I682815 B TWI682815 B TW I682815B TW 105118070 A TW105118070 A TW 105118070A TW 105118070 A TW105118070 A TW 105118070A TW I682815 B TWI682815 B TW I682815B
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diameter
nozzle
opening
coating
angle
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TW105118070A
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Chinese (zh)
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TW201707792A (en
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山口貴志
松岡明宏
東良知
橫山廣樹
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日商富士軟片股份有限公司
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B05SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05CAPPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C5/00Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work
    • B05C5/02Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work the liquid or other fluent material being discharged through an outlet orifice by pressure, e.g. from an outlet device in contact or almost in contact, with the work
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15DFLUID DYNAMICS, i.e. METHODS OR MEANS FOR INFLUENCING THE FLOW OF GASES OR LIQUIDS
    • F15D1/00Influencing flow of fluids
    • F15D1/08Influencing flow of fluids of jets leaving an orifice
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B05SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05CAPPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C11/00Component parts, details or accessories not specifically provided for in groups B05C1/00 - B05C9/00
    • B05C11/10Storage, supply or control of liquid or other fluent material; Recovery of excess liquid or other fluent material
    • B05C11/1002Means for controlling supply, i.e. flow or pressure, of liquid or other fluent material to the applying apparatus, e.g. valves
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B05SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05CAPPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C5/00Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work
    • B05C5/02Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work the liquid or other fluent material being discharged through an outlet orifice by pressure, e.g. from an outlet device in contact or almost in contact, with the work
    • B05C5/0254Coating heads with slot-shaped outlet
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B05SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05CAPPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C9/00Apparatus or plant for applying liquid or other fluent material to surfaces by means not covered by any preceding group, or in which the means of applying the liquid or other fluent material is not important
    • B05C9/08Apparatus or plant for applying liquid or other fluent material to surfaces by means not covered by any preceding group, or in which the means of applying the liquid or other fluent material is not important for applying liquid or other fluent material and performing an auxiliary operation
    • B05C9/14Apparatus or plant for applying liquid or other fluent material to surfaces by means not covered by any preceding group, or in which the means of applying the liquid or other fluent material is not important for applying liquid or other fluent material and performing an auxiliary operation the auxiliary operation involving heating or cooling
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B05SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05DPROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D1/00Processes for applying liquids or other fluent materials
    • B05D1/26Processes for applying liquids or other fluent materials performed by applying the liquid or other fluent material from an outlet device in contact with, or almost in contact with, the surface
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B05SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05DPROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D3/00Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
    • B05D3/007After-treatment

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Coating Apparatus (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)

Abstract

提供能促進去凝集,能抑制粒子的滯留的噴口、及使用噴口的送液裝置、塗布裝置、及光學膜的製造方法。 Provided are a nozzle capable of promoting deagglomeration and suppressing the retention of particles, a liquid feeding device using a nozzle, a coating device, and a method of manufacturing an optical film.

一種噴口,具備:噴口本體;流入開口,位於噴口本體的流入側;縮徑部,係用具有自流入開口連續的曲率半徑為1~10mm的曲面、和自曲面連續且以120~180°的角度縮徑至狹窄開口的縮徑面的一次側內壁構成;和擴徑部,係用從狹窄開口連續至流出開口且以2~10°的角度擴徑的二次側內壁構成,狹窄開口的直徑對流入開口的直徑的比為0.07~0.18。 A spout, comprising: a spout body; an inflow opening, located on the inflow side of the spout body; a reduced diameter portion, a curved surface having a continuous radius of curvature of 1 to 10 mm from the inflow opening, and a continuous curved surface at 120 to 180° The primary-side inner wall of the reduced-diameter surface whose angle is reduced to a narrow opening; and the enlarged-diameter portion is formed by a secondary-side inner wall that continues from the narrow opening to the outflow opening and is enlarged at an angle of 2-10°, narrow The ratio of the diameter of the opening to the diameter of the inflow opening is 0.07 to 0.18.

Description

噴口、及使用噴口的送液裝置、塗布裝置、及光學膜的製造方法 Spout, and liquid delivery device using the spout, coating device, and method of manufacturing optical film

本發明涉及噴口、及使用噴口的送液裝置、塗布裝置、及光學膜的製造方法。 The present invention relates to a nozzle, a liquid-feeding device using the nozzle, a coating device, and a method of manufacturing an optical film.

包含粒子的液體被使用在許多領域上。例如,進行在被連續搬送的帶狀的網狀物(web)表面塗布包含粒子的液體(也稱為塗布液),形成所要厚度的塗膜,從而製造光學膜等功能性膜。功能性膜的製程中,透過流路將包含粒子的液體送液至塗布頭,從塗布頭將包含粒子的液體供給於網狀物。 Liquids containing particles are used in many fields. For example, a liquid film containing particles (also referred to as a coating liquid) is applied to the surface of a belt-shaped web that is continuously transported to form a coating film of a desired thickness, thereby producing a functional film such as an optical film. In the manufacturing process of the functional film, the liquid containing the particles is sent to the coating head through the flow path, and the liquid containing the particles is supplied to the mesh from the coating head.

在使用包含粒子的液體的情況下,有粒子在製程中凝集而成為粒子的凝集體的情形,因而必須使粒子的凝集體分散。 When a liquid containing particles is used, the particles may aggregate during the manufacturing process to become aggregates of particles. Therefore, the aggregates of particles must be dispersed.

專利文獻1記載了因強制地送液至窄流路而加壓後,送液至口徑寬的流路,從而將有機交聯高分子粒子的一次粒子的凝集體進行去凝集處理至成為一次粒子。 Patent Document 1 describes that after forcibly feeding a liquid to a narrow flow path and pressurizing it, the liquid is sent to a wide-diameter flow path, so that the aggregates of the primary particles of the organic cross-linked polymer particles are deaggregated until they become primary particles. .

先前技術文獻 Prior technical literature 專利文獻 Patent Literature

專利文獻1 日本特開2014-196468號公報 Patent Literature 1 Japanese Patent Application Publication No. 2014-196468

儘管如此,就專利文獻1的技術而言,凝集體的去凝集並不充分,還有粒子滯留在流路的流入側之虞。 Nevertheless, with the technique of Patent Document 1, the deagglomeration of aggregates is not sufficient, and particles may remain on the inflow side of the flow path.

本發明係有鑑於這種事情而完成者,目的在於提供能促進粒子凝集體的去凝集,且能抑制粒子的滯留的噴口、及使用噴口的送液裝置、塗布裝置、及光學膜的製造方法。 The present invention has been completed in view of such a problem, and an object thereof is to provide a nozzle capable of promoting the deagglomeration of particle aggregates and suppressing the retention of particles, and a liquid-feeding device, coating device, and optical film manufacturing method using the nozzle .

根據本發明的一態樣,一種噴口,具備:噴口本體;流入開口,位於噴口本體的流入側;流出開口,位於噴口本體的流出側;縮徑部,係用具有自流入開口連續的曲率半徑為1~10mm的曲面、和自曲面連續且以120~180°的角度縮徑至狹窄開口的縮徑面的一次側內壁構成;和擴徑部,係用從狹窄開口連續至流出開口且以2~10°的角度擴徑的二次側內壁構成,狹窄開口的直徑對流入開口的直徑的比為0.07~0.18。 According to an aspect of the present invention, a spout includes: a spout body; an inflow opening located on the inflow side of the spout body; an outflow opening located on the outflow side of the spout body; a reduced diameter portion having a continuous radius of curvature from the inflow opening It is composed of a curved surface of 1 to 10 mm, and a primary inner wall of a reduced diameter surface that is continuous from the curved surface and reduced in diameter at an angle of 120 to 180° to a narrow opening; and the enlarged diameter portion is continuous from the narrow opening to the outflow opening and The secondary side inner wall is expanded at an angle of 2 to 10°, and the ratio of the diameter of the narrow opening to the diameter of the inflow opening is 0.07 to 0.18.

較佳為,一次側內壁的縮徑面的角度為130~170°。 Preferably, the angle of the diameter reducing surface of the inner wall on the primary side is 130 to 170°.

較佳為,二次側內壁的擴徑角度為5~8°。 Preferably, the expansion angle of the inner wall of the secondary side is 5 to 8°.

較佳為,狹窄開口的直徑對流入開口的直徑的比為0.07~0.14。 Preferably, the ratio of the diameter of the narrow opening to the diameter of the inflow opening is 0.07 to 0.14.

根據本發明的另一態樣,一種送液裝置,具備:流路,供包含粒子的流體通過;上述噴口,設置於流路的一部分,供流體通過;和驅動源,用於將流體送至流路和噴口。 According to another aspect of the present invention, a liquid-feeding device includes: a flow path for passing a fluid containing particles; the above-mentioned spout, provided in a part of the flow path, for passing a fluid; and a driving source for sending the fluid to Flow path and spout.

根據本發明的另一態樣,一種塗布裝置,具備:流路,供包含粒子的塗布液通過;上述噴口,設置於流路的一部分,供塗布液通過;和塗布頭,係設置於噴口的下游側。 According to another aspect of the present invention, a coating device includes: a flow path through which a coating liquid containing particles passes; the above-mentioned spout, which is provided in a part of the flow path, through which the coating liquid passes; and a coating head, which is provided on the spout Downstream side.

根據本發明的另一態樣,一種光學膜的製造方法,包含下述步驟:從上述塗布裝置,將包含粒子的塗布液供給於被連續搬送的網狀物,形成塗膜;和使塗膜乾燥、及/或硬化。 According to another aspect of the present invention, an optical film manufacturing method includes the steps of: supplying a coating solution containing particles from a coating device described above to a web that is continuously transported to form a coating film; and making the coating film Dry, and/or harden.

根據本發明,在使用包含粒子的液體的製程中,能促進粒子的去凝集,能抑制粒子的滯留。 According to the present invention, in a process using a liquid containing particles, deagglomeration of particles can be promoted, and retention of particles can be suppressed.

10‧‧‧噴口 10‧‧‧ spout

12‧‧‧噴口本體 12‧‧‧ nozzle body

14‧‧‧流入開口 14‧‧‧Inflow opening

16‧‧‧狹窄開口 16‧‧‧Narrow opening

18‧‧‧一次側內壁 18‧‧‧Inner side wall

20‧‧‧縮徑部 20‧‧‧Reduction

22‧‧‧曲面 22‧‧‧Curved

24‧‧‧縮徑面 24‧‧‧Reduced diameter surface

26‧‧‧流出開口 26‧‧‧ Outflow opening

28‧‧‧二次側內壁 28‧‧‧Secondary side inner wall

30‧‧‧擴徑部 30‧‧‧Expansion Department

32‧‧‧一次側凸緣 32‧‧‧primary side flange

34‧‧‧溝 34‧‧‧Ditch

36‧‧‧二次側凸緣 36‧‧‧Secondary flange

38‧‧‧溝 38‧‧‧Ditch

60‧‧‧配管 60‧‧‧Piping

100‧‧‧製造線 100‧‧‧Manufacturing line

102‧‧‧支承輥 102‧‧‧Back roller

104‧‧‧縫模 104‧‧‧Sewing mould

106‧‧‧塗布液 106‧‧‧Coating liquid

108‧‧‧貯藏槽 108‧‧‧Storage tank

110‧‧‧送液幫浦 110‧‧‧Liquid pump

112‧‧‧壓力計 112‧‧‧pressure gauge

114‧‧‧減壓脫氣裝置 114‧‧‧Decompression degassing device

116‧‧‧過濾濾器 116‧‧‧Filter

118‧‧‧流量計 118‧‧‧Flowmeter

120‧‧‧處理區 120‧‧‧ processing area

130‧‧‧第2貯藏槽 130‧‧‧Second storage tank

200‧‧‧送液裝置 200‧‧‧Liquid delivery device

202‧‧‧流體 202‧‧‧ fluid

ID1~ID3‧‧‧直徑 ID1~ID3‧‧‧Diameter

r‧‧‧曲率半徑 r‧‧‧ radius of curvature

OD‧‧‧外徑 OD‧‧‧Outer diameter

α、β‧‧‧角度 α、β‧‧‧Angle

第1圖(A)係噴口的側面圖、第1圖(B)係噴口的剖面圖。 Fig. 1 (A) is a side view of the nozzle, and Fig. 1 (B) is a sectional view of the nozzle.

第2圖係光學膜的製造線的概略結構圖。 Fig. 2 is a schematic configuration diagram of an optical film manufacturing line.

第3圖係送液裝置的概略結構圖。 Fig. 3 is a schematic configuration diagram of a liquid feeding device.

[用於實施發明的形態] [Form for carrying out the invention]

以下,根據隨附圖式,對於本發明的較佳實施形態進行說明。本發明係藉由以下的較佳實施形態進行說明。能夠在沒有超出本發明的範圍下,利用許多手法進行變更,能利用本實施形態以外的其他實施形態。由此,在本發明的範圍內的全部變更係包含在申請專利範圍內。 Hereinafter, preferred embodiments of the present invention will be described based on the accompanying drawings. The present invention will be described by the following preferred embodiments. It can be modified by many techniques without exceeding the scope of the present invention, and other embodiments than the present embodiment can be used. Therefore, all changes within the scope of the present invention are included in the scope of the patent application.

此處,圖中,以相同的元件符號所表示的部分係具有同樣功能的同樣要素。此外,本說明書中,在使用”~”表示數值範圍的情況下,用”~”所表示的上限、下限的數值也包含在數值範圍內。 Here, in the figure, the parts indicated by the same element symbols are the same elements having the same function. In addition, in this specification, when "~" is used to indicate a numerical range, the numerical values of the upper and lower limits indicated by "~" are also included in the numerical range.

第1圖(A)係本實施形態的噴口的箭頭B-B線方向的側面圖,第1圖(B)係本實施形態的噴口的剖面圖。本實施形態的噴口10係配置於供流入流體用的配管60之間。 FIG. 1 (A) is a side view of the nozzle of the present embodiment in the direction of arrow B-B, and FIG. 1 (B) is a cross-sectional view of the nozzle of the present embodiment. The nozzle 10 of this embodiment is arranged between the pipes 60 for the inflow fluid.

噴口10具有圓柱狀的噴口本體12。噴口本體12,例如,係用不鏽鋼的材質構成。但是,這些材質不限於不鏽鋼。噴口本體12的外徑OD,例如為15~30mm。但是,外徑OD係考慮噴口10所應用的送液裝置、塗布裝置等來適宜決定。噴口本體12的形狀不限於圓柱狀。 The nozzle 10 has a cylindrical nozzle body 12. The spout body 12 is made of stainless steel, for example. However, these materials are not limited to stainless steel. The outer diameter OD of the nozzle body 12 is, for example, 15 to 30 mm. However, the outer diameter OD is appropriately determined in consideration of the liquid feeding device, coating device, etc. to which the nozzle 10 is applied. The shape of the nozzle body 12 is not limited to the cylindrical shape.

噴口本體12具備相對於用箭頭A所示的流體的流動方向而位於流入側的流入開口14。流入開口14接受包含粒子的流體。流入開口14的直徑ID1與連接於流入側的配管60的內徑幾乎相等,因此可減少流體的阻力而較佳。流入開口14的直徑ID1,例如為10~20mm。 但是,直徑ID1係考慮噴口10所應用的送液裝置、塗布裝置等來適宜決定。 The spout body 12 includes an inflow opening 14 on the inflow side with respect to the flow direction of the fluid indicated by arrow A. The inflow opening 14 receives fluid containing particles. The diameter ID1 of the inflow opening 14 is almost equal to the inner diameter of the pipe 60 connected to the inflow side, so it is preferable to reduce the resistance of the fluid. The diameter ID1 of the inflow opening 14 is, for example, 10 to 20 mm. However, the diameter ID1 is appropriately determined in consideration of the liquid feeding device, the coating device, etc. to which the nozzle 10 is applied.

噴口本體12具備包含從流入開口14連續至狹窄開口16的一次側內壁18的縮徑部20。狹窄開口16的直徑ID2,例如為1~5mm。本實施形態中,狹窄開口16的直徑ID2對流入開口14的直徑ID1的比(ID2/ID1)在0.07~0.18的範圍,較佳為在0.07~0.14的範圍。 The spout body 12 includes a reduced-diameter portion 20 including a primary-side inner wall 18 that continues from the inflow opening 14 to the narrow opening 16. The diameter ID2 of the narrow opening 16 is, for example, 1 to 5 mm. In the present embodiment, the ratio of the diameter ID2 of the narrow opening 16 to the diameter ID1 of the inflow opening 14 (ID2/ID1) is in the range of 0.07 to 0.18, preferably 0.07 to 0.14.

一次側內壁18具有自流入開口14連續的曲率半徑r為1~10mm的曲面22。曲面22朝向直徑比流入開口14小的狹窄開口16。另外,一次側內壁18具有自曲面22連續且以120~180°的角度α縮徑至狹窄開口16的縮徑面24。縮徑面24的縮徑的角度α較佳為130~170°。 The primary-side inner wall 18 has a curved surface 22 having a radius of curvature r continuous from the inflow opening 14 of 1 to 10 mm. The curved surface 22 faces a narrow opening 16 having a smaller diameter than the inflow opening 14. In addition, the primary-side inner wall 18 has a reduced-diameter surface 24 that is continuous from the curved surface 22 and reduced in diameter to the narrow opening 16 at an angle α of 120 to 180°. The angle α of the diameter reduction of the diameter reduction surface 24 is preferably 130 to 170°.

縮徑部20的長度(從流入開口14到狹窄開口16的距離),例如為10~100mm。但是,不限於此長度。 The length of the reduced diameter portion 20 (the distance from the inflow opening 14 to the narrow opening 16) is, for example, 10 to 100 mm. However, it is not limited to this length.

縮徑面24的角度α意指在剖視下,分別與挾持狹窄開口16所在位置的縮徑面24接觸的切線的夾角。此處的縮徑係從流體的流動方向觀看,一次側內壁18的直徑(內徑)減少之意。 The angle α of the diameter-reducing surface 24 means the angle between the tangent lines that respectively contact the diameter-reducing surface 24 at the position where the narrow opening 16 is held in a cross-sectional view. Here, the reduced diameter means that the diameter (inner diameter) of the inner wall 18 on the primary side is reduced as viewed from the flow direction of the fluid.

本實施形態中,一次側內壁18係以120~180°的角度α縮徑,因此一次側內壁18係較急遽地從流入開口14的直徑ID1縮徑為狹窄開口16的直徑ID2。 In the present embodiment, the primary-side inner wall 18 is reduced in diameter by an angle α of 120 to 180°. Therefore, the primary-side inner wall 18 is reduced from the diameter ID1 of the inflow opening 14 to the diameter ID2 of the narrow opening 16 relatively quickly.

噴口本體12具備包含從狹窄開口16連續至流出開口26且以2~10°的角度β擴徑的二次側內壁28的擴徑部30。又,擴徑的角度β較佳為5~8°。 The spout body 12 includes an enlarged diameter portion 30 that includes a secondary-side inner wall 28 that extends from the narrow opening 16 to the outflow opening 26 and expands at an angle β of 2 to 10°. In addition, the angle β of the diameter expansion is preferably 5 to 8°.

流出開口26具有基本上與流入開口14的直徑ID1相同的直徑ID3,流出開口26的直徑ID3,例如為10~20mm。此外,流出開口26的直徑ID3幾乎與連接於流出側的配管60的內徑相等。但是,直徑ID3係考慮噴口10所應用的送液裝置、塗布裝置等來適宜決定。此外,擴徑部30的長度,例如為80~200mm。但是,不限於此長度。 The outflow opening 26 has a diameter ID3 that is substantially the same as the diameter ID1 of the inflow opening 14, and the diameter ID3 of the outflow opening 26 is, for example, 10 to 20 mm. In addition, the diameter ID3 of the outflow opening 26 is almost equal to the inner diameter of the pipe 60 connected to the outflow side. However, the diameter ID3 is appropriately determined in consideration of the liquid feeding device, coating device, etc. to which the nozzle 10 is applied. In addition, the length of the enlarged diameter portion 30 is, for example, 80 to 200 mm. However, it is not limited to this length.

二次側內壁28,在剖視下,從狹窄開口16直線地連續至流出開口26。二次側內壁28的角度β,意指在剖視下,挾持狹窄開口16所在位置的二次側內壁28的延長線所呈的夾角。此處,擴徑意指從流體的流動方向觀看,二次側內壁28的直徑(內徑)擴大。 The secondary-side inner wall 28 continues linearly from the narrow opening 16 to the outflow opening 26 in a cross-sectional view. The angle β of the secondary-side inner wall 28 means the angle formed by the extension of the secondary-side inner wall 28 at the position where the narrow opening 16 is held in a cross-sectional view. Here, the enlarged diameter means that the diameter (inner diameter) of the secondary-side inner wall 28 is enlarged as viewed from the flow direction of the fluid.

二次側內壁28係從狹窄開口16連續至流出開口26且以2~10°的角度β擴徑,因此擴徑部30中的二次側內壁28的擴徑角度β在狹窄開口16至流出開口26之間、在2~10°的範圍內基本上是一定的。即,擴徑部30,在剖視下,不具有挾持狹窄開口16所在位置的二次側內壁28成為平行的部分(也稱為狹路)。 The secondary-side inner wall 28 continues from the narrow opening 16 to the outflow opening 26 and expands in diameter at an angle β of 2 to 10°. Therefore, the diameter-expanding angle β of the secondary-side inner wall 28 in the enlarged portion 30 is in the narrow opening 16 The range from 2 to 10° to the outflow opening 26 is basically constant. That is, the enlarged-diameter portion 30 does not have a portion (also referred to as a narrow path) where the secondary-side inner wall 28 that pinches the position of the narrow opening 16 becomes parallel in a cross-sectional view.

噴口10在縮徑部20的流入側具備一次側凸緣32。一次側凸緣32具備供收納在連接噴口10和流入側的配管60之際使用的密封構件(未圖示)用的溝34。 The nozzle 10 includes a primary flange 32 on the inflow side of the reduced diameter portion 20. The primary flange 32 is provided with a groove 34 for a sealing member (not shown) to be accommodated when connecting the spout 10 and the inflow-side pipe 60.

噴口10在擴徑部30的流出側具備二次側凸緣36。二次側凸緣36具備供收納在連接噴口10和流出側的配管60之際使用的密封構件(未圖示)用的溝38。 The nozzle 10 includes a secondary flange 36 on the outflow side of the enlarged diameter portion 30. The secondary flange 36 is provided with a groove 38 for a sealing member (not shown) used for accommodating the pipe 60 connecting the spout 10 and the outflow side.

在本實施形態的噴口10中,包含粒子的液體從流入開口14流入噴口本體12的縮徑部20。有液體中的粒子彼此凝集而形成凝集體的情況。一次側內壁18係在直徑小的狹窄開口16利用120~180°的縮徑面24急遽地縮徑,因此在液體通過狹窄開口16之際產生亂流。藉由此亂流促進粒子的凝集體的去凝集。此外,一次側內壁18具有曲率半徑為1~10mm的曲面22,因此能抑制粒子滯留在縮徑部20內。由此,能抑制因粒子滯留所致的故障。若粒子滯留在縮徑部20,則有滯留的粒子的未被去凝集地通過噴口10的情況。會因未被去凝集的粒子而產生故障(例如,紋路故障、點缺陷、不能發揮性能等)。 In the nozzle 10 of the present embodiment, the liquid containing particles flows from the inflow opening 14 into the reduced-diameter portion 20 of the nozzle body 12. In some cases, the particles in the liquid aggregate with each other to form an aggregate. The inner wall 18 on the primary side is rapidly reduced in diameter by the narrowing surface 24 of 120 to 180° at the narrow opening 16 with a small diameter, so that turbulent flow occurs when the liquid passes through the narrow opening 16. This turbulence promotes the deagglomeration of the aggregates of particles. In addition, the primary-side inner wall 18 has a curved surface 22 having a radius of curvature of 1 to 10 mm, so that particles can be suppressed from staying in the reduced-diameter portion 20. Thereby, failure due to particle retention can be suppressed. If the particles stay in the reduced-diameter portion 20, the retained particles may pass through the nozzle 10 without being deaggregated. Failures may occur due to particles that have not been de-agglutinated (eg, texture failures, point defects, inability to perform, etc.).

通過狹窄開口16的流體係往擴徑部30移動而從流出開口26流出。往擴徑部30移動的流體中的凝集體受到亂流而去凝集了。在流體從狹窄開口16到從流出開口26流出的期間,必須使被去凝集的粒子不會再凝集。本實施形態的擴徑部30的二次側內壁28係以2~10°的和緩角度β擴徑,不具有狹路。因為進行了擴徑,因此產生了使流體中的粒子彼此不接觸的作用,能夠抑制再凝集。此外,因為是2~10°的和緩角度β,因此粒子容易與二次側內壁28接觸。藉由粒子與二次側內壁28接觸,即使在粒子再凝集的情況下,也可以利用與二次側內壁28接觸來促進去凝集。 The flow system passing through the narrow opening 16 moves toward the enlarged diameter portion 30 and flows out from the outflow opening 26. The aggregates in the fluid moving toward the enlarged diameter portion 30 are turbulent and deagglomerate. During the period when the fluid flows from the narrow opening 16 to the outflow opening 26, the deaggregated particles must not be aggregated again. The secondary-side inner wall 28 of the enlarged diameter portion 30 of this embodiment is enlarged at a gentle angle β of 2 to 10°, and does not have a narrow path. Since the diameter is expanded, the particles in the fluid do not come into contact with each other, and re-agglomeration can be suppressed. In addition, since it is a gentle angle β of 2 to 10°, the particles easily come into contact with the secondary-side inner wall 28. Since the particles are in contact with the secondary-side inner wall 28, even when the particles are re-aggregated, the de-agglomeration can be promoted by contact with the secondary-side inner wall 28.

此處,去凝集意指與通過噴口前相比,粒子的凝集體的尺寸(長邊的長度)在通過噴口後成為20%以下的尺寸。 Here, deagglomeration means that the size (the length of the long side) of the aggregate of particles becomes 20% or less after passing through the nozzle compared to before passing through the nozzle.

推定利用本實施形態的噴口發揮上述作用,能夠促進粒子的去凝集、和抑制粒子的滯留。又,對於以上說明的噴口10的具體效果,用後述的實施例進行說明。 It is presumed that the nozzle of the present embodiment exerts the above-mentioned functions, and can promote the deagglomeration of particles and suppress the retention of particles. In addition, the specific effects of the nozzle 10 described above will be described using embodiments described later.

第2圖係將應用本實施形態的噴口的塗布裝置設置在光學膜的製造線的製造線的概略結構圖。 Fig. 2 is a schematic configuration diagram of a manufacturing line in which a coating device to which the nozzle of the present embodiment is applied is installed in an optical film manufacturing line.

光學膜的製造線準備了:連續送出捲繞成捲筒狀的樹脂薄膜(以下稱為「網狀物(web)W」)的步驟;在與將網狀物W捲取成捲筒狀的步驟之間,於網狀物形成塗膜的步驟;乾燥塗膜的步驟;及/或硬化塗布膜的步驟等的僅適宜必要的數量的步驟。 The optical film manufacturing line is prepared: a step of continuously sending out a resin film wound into a roll shape (hereinafter referred to as "web (web) W"); before winding the web W into a roll shape Between the steps, the steps of forming a coating film on the mesh; the step of drying the coating film; and/or the step of hardening the coating film, etc., are only suitable for the necessary number of steps.

第2圖所示的製造線100具有:在塗布位置中捲掛網狀物W的支承輥102、和配置在相對於支承輥102的位置的塗布頭的縫模(slot die)104。透過配管60,對縫模104供給供製造光學膜用的包含粒子的塗布液106。此處,配管60成為包含粒子的塗布液通過的流路。流路,若包含粒子的塗布液106能通過的話,其材質、形狀等便沒有限定。又,作為由包含粒子的塗布液106所製造的光學膜,例如,能舉出:防眩性膜、散射膜、及擴散膜。 The manufacturing line 100 shown in FIG. 2 includes a support roll 102 that winds the web W in the coating position, and a slot die 104 of a coating head disposed at a position relative to the support roll 102. Through the piping 60, the slit die 104 is supplied with a coating liquid 106 containing particles for manufacturing an optical film. Here, the piping 60 becomes a flow path through which the coating liquid containing particles passes. As long as the flow path can pass through the coating liquid 106 containing particles, its material, shape, etc. are not limited. In addition, examples of the optical film produced from the coating liquid 106 containing particles include an anti-glare film, a scattering film, and a diffusion film.

本實施形態中例示了縫模104作為塗布頭。此處,塗布頭,若能塗布包含粒子的流體的話,則 其方式沒有限定。例如,能使用擠出方式、噴墨方式、滑動塗布方式等。 In this embodiment, the slit die 104 is exemplified as the coating head. Here, if the coating head can coat the fluid containing particles, then The method is not limited. For example, an extrusion method, an inkjet method, a slide coating method, etc. can be used.

包含粒子的塗布液106係貯藏於貯藏槽108。此貯藏槽108和縫模104係透過配管60進行流體連通。在貯藏槽108與縫模104之間,從上游側至下游側,將送液幫浦110、壓力計112、減壓脫氣裝置114、過濾濾器116、流量計118、噴口10設置於配管60的一部分。 The coating liquid 106 containing particles is stored in the storage tank 108. The storage tank 108 and the slit die 104 are in fluid communication through the piping 60. Between the storage tank 108 and the slit die 104, from the upstream side to the downstream side, a liquid supply pump 110, a pressure gauge 112, a decompression deaeration device 114, a filter filter 116, a flow meter 118, and a nozzle 10 are provided in the piping 60 a part of.

所謂的「上游」、「下游」係相對於塗布液(流體)的移動方向使用。相對於某基準,將位於移動方向側的情況定義為「下游」,將位於與移動方向為相反側的情況定義為「上游」。 The so-called "upstream" and "downstream" are used with respect to the direction of movement of the coating liquid (fluid). With respect to a certain standard, the case on the side in the moving direction is defined as "downstream", and the case on the side opposite to the moving direction is defined as "upstream".

在本實施形態中,若塗布裝置至少具備流路、噴口、和在噴口的下游側的塗布頭的話即可。 In this embodiment, it is sufficient if the coating device includes at least the flow path, the nozzle, and the coating head on the downstream side of the nozzle.

作為送液幫浦110,能使用公知的各種型態的幫浦,若考慮包含粒子的塗布液106,則較佳為隔膜幫浦。 As the liquid feeding pump 110, various types of well-known pumps can be used. If the coating liquid 106 containing particles is considered, it is preferably a diaphragm pump.

壓力計112能使用公知的各種型態的壓力計。過濾濾器116或減壓脫氣裝置114能根據塗布液106的組成等採用適宜的規格者。作為流量計118,能使用公知的各種型態的流量計,能較佳地使用科里奧利式流量計。 The pressure gauge 112 can use various types of well-known pressure gauges. The filter filter 116 or the reduced-pressure degassing device 114 can adopt appropriate specifications according to the composition of the coating liquid 106 and the like. As the flow meter 118, various types of well-known flow meters can be used, and a Coriolis type flow meter can be preferably used.

對於利用製造線100的光學膜的製造方法的一例進行說明。 An example of a method of manufacturing an optical film using the manufacturing line 100 will be described.

準備具有塗布頭的縫模104、噴口10、和流路的配管60的塗布裝置,調製包含粒子的塗布液106,貯藏於貯藏槽108。 A coating device having a slit die 104 with a coating head, a spout 10, and a pipe 60 of a flow path is prepared, a coating liquid 106 containing particles is prepared, and stored in a storage tank 108.

從捲繞了網狀物W的捲筒連續地送出網狀物W,利用除靜電裝置(未圖示)除去網狀物W帶有的靜電,接著利用除塵裝置(未圖示)除去網狀物W上附著的異物。 The web W is continuously sent out from the reel around which the web W is wound, and the static electricity carried by the web W is removed by a static removing device (not shown), and then the web is removed by a dust removing device (not shown) Foreign matter attached to the object W.

將網狀物W的背面捲掛於支承輥102,連續搬送網狀物W。將包含粒子的塗布液106從塗布頭的縫模104供給於被連續搬送的網狀物W的表面,形成塗膜。此處,塗膜意指形成在網狀物W的表面,以成為所要的膜厚的方式予以控制的塗布液。 The back surface of the mesh W is wound around the support roller 102, and the mesh W is continuously conveyed. The coating liquid 106 containing particles is supplied from the slit die 104 of the coating head to the surface of the web W that is continuously transported to form a coating film. Here, the coating film means a coating liquid formed on the surface of the web W and controlled so as to have a desired film thickness.

包含粒子的塗布液106係從貯藏槽108,利用供輸送塗布液(流體)用的驅動源的送液幫浦110壓送至縫模104。經壓送的塗布液106係經過壓力計112、減壓脫氣裝置114、過濾濾器116及噴口10而透過配管60供給於縫模104。 The coating liquid 106 containing particles is pressure-supplied from the storage tank 108 to the slit die 104 using a liquid-feeding pump 110 for a driving source for transporting the coating liquid (fluid). The pressure-applied coating liquid 106 is supplied to the slit die 104 through the pipe 60 through the pressure gauge 112, the decompression deaeration device 114, the filter 116, and the nozzle 10.

能藉由使包含粒子的塗布液106通過本實施形態的噴口10來將塗布液106中的粒子的凝集體去凝集。其結果,能避免塗布液106的粒子堵塞在縫模104的縫的現象。此外,能夠將粒子均勻地分散在形成於網狀物W的塗膜。可以製造具有所要的光學特性的光學膜。可抑制粒子滯留在噴口10內,可抑制因滯留所致的故障。 The aggregate of particles in the coating liquid 106 can be deaggregated by passing the coating liquid 106 containing particles through the nozzle 10 of this embodiment. As a result, the phenomenon that the particles of the coating liquid 106 clog the slit of the slit die 104 can be avoided. In addition, the particles can be uniformly dispersed in the coating film formed on the web W. An optical film having desired optical characteristics can be manufactured. It is possible to suppress the particles from staying in the nozzle 10, and it is possible to suppress the malfunction caused by the staying.

噴口10較佳為配置在離縫模104最近的的上游側。例如,較佳為設置在離縫模104的給液口1000mm以內的距離。能夠在塗布液中的粒子再凝集之前將塗布液106供給於縫模104。 The nozzle 10 is preferably arranged on the upstream side closest to the slit die 104. For example, it is preferably provided within a distance of 1000 mm from the liquid supply port of the slit die 104. The coating liquid 106 can be supplied to the slit die 104 before the particles in the coating liquid coagulate again.

接著將形成了塗膜的網狀物W朝處理區120連續搬送。處理區120包含使形成在網狀物W的塗膜乾燥、及/或硬化的步驟。例如,乾燥塗膜的步驟意指藉由利用熱風的對流乾燥方式、利用紅外線等輻射熱的輻射乾燥方式等各種乾燥方式將水、溶劑等從塗膜除去的步驟。此外,硬化塗膜的步驟意指藉由對塗膜照射紫外線、電磁波、粒子線等活性線來使塗膜中所含的化合物產生交聯反應、聚合反應等以提高塗膜的硬度。 Next, the web W on which the coating film is formed is continuously transported toward the processing zone 120. The treatment zone 120 includes the steps of drying and/or hardening the coating film formed on the mesh W. For example, the step of drying the coating film means a step of removing water, solvent, etc. from the coating film by various drying methods such as a convection drying method using hot air, a radiation drying method using radiant heat such as infrared rays, and the like. In addition, the step of hardening the coating film means that by irradiating the coating film with active rays such as ultraviolet rays, electromagnetic waves, particle rays, etc., the compounds contained in the coating film undergo crosslinking reaction, polymerization reaction, etc. to increase the hardness of the coating film.

具有經乾燥、及/或硬化的塗膜的網狀物W係捲取為捲筒狀。 The web W having the dried and/or hardened coating film is wound into a roll shape.

對於一般的光學膜的製造方法進行說明,但藉由變更供給於網狀物W的塗布液的種類,在光學膜方面,能製造光學補償膜、防眩膜、防眩性抗反射膜等特定的膜。 A general method of manufacturing an optical film will be described. However, by changing the type of coating liquid supplied to the web W, it is possible to manufacture optical compensation films, anti-glare films, anti-glare anti-reflection films, etc. in terms of optical films. Of the membrane.

對於光學膜所使用的材料進行說明。 The material used for the optical film will be described.

網狀物意指可撓性的連續帶狀且膜厚薄的構件,較佳為使用樹脂膜。作為構成樹脂膜的聚合物,可舉出:醯化纖維素(例如,三醋酸纖維素、二醋酸纖維素、以富士軟片(股)製的TAC-TD80U、TD80UF等為代表)、聚醯胺、聚碳酸酯、聚酯(例如,聚對鈦酸乙二酯、聚萘二甲酸乙二酯)、聚苯乙烯、聚烯烴、降莰烷 (norbornane)系樹脂(ARTON:商品名,JSR(股)製)、非晶質聚烯烴(ZEONEX:商品名,日本ZEON(股)製)、(甲基)丙烯酸系樹脂(Acrypet VRL20A:商品名,三菱RAYON(股)製、日本特開2004-70296號公報或日本特開2006-171464號公報記載的含有環構造的丙烯酸系樹脂)等。其中,較佳為三醋酸纖維素、聚對鈦酸乙二酯、聚萘二甲酸乙二酯,特佳為三醋酸纖維素。 The mesh means a flexible continuous belt-shaped member with a thin film thickness, and a resin film is preferably used. Examples of the polymer constituting the resin film include cellulose acylate (for example, cellulose triacetate, cellulose diacetate, TAC-TD80U, TD80UF, etc. manufactured by Fuji Film Co., Ltd.), and polyamide , Polycarbonate, polyester (for example, polyethylene terephthalate, polyethylene naphthalate), polystyrene, polyolefin, norbornane (norbornane) resin (ARTON: trade name, manufactured by JSR Corporation), amorphous polyolefin (ZEONEX: trade name, manufactured by Japan Zeon Corporation), (meth)acrylic resin (Acrypet VRL20A: trade name , Mitsubishi Rayon Co., Ltd., Japanese Patent Application Laid-Open No. 2004-70296 or Japanese Patent Application Laid-Open No. 2006-171464, which contains an acrylic resin containing a ring structure) and the like. Among them, cellulose triacetate, polyethylene terephthalate, and polyethylene naphthalate are preferred, and cellulose triacetate is particularly preferred.

塗布液至少包含溶劑、及粒子。除此之外,也可以包含結合劑聚合物。塗布液的黏度,例如為0.5~20mPa‧s。塗布液的黏度能使用振動式黏度計(A&D股份公司製,型號:SV-1A),設為在25℃下的測定值。 The coating liquid contains at least a solvent and particles. In addition, a binder polymer may be included. The viscosity of the coating liquid is, for example, 0.5 to 20 mPa‧s. The viscosity of the coating liquid can be measured at 25°C using a vibrating viscometer (manufactured by A&D Corporation, model: SV-1A).

作為溶劑,例如,能舉出有機溶劑。作為有機溶劑,例如,在醇系方面,可舉出:甲醇、乙醇、正丙醇、異丙醇、正丁醇、異丁醇、第二丁醇、第三丁醇、異戊醇、1-戊醇、正己醇、甲基戊醇等;在酮系方面,可舉出:甲基異丁基酮、甲基乙基酮、二乙基酮、丙酮、環己酮、二丙酮醇等;在酯系方面,可舉出:乙酸甲酯、乙酸乙酯、乙酸正丙酯、乙酸異丙酯、乙酸異丁酯、乙酸正丁酯、乙酸異戊酯、乙酸正戊酯、丙酸甲酯、丙酸乙酯、丁酸甲酯、丁酸乙酯、乙酸甲酯、乳酸甲酯、乳酸乙酯等;在醚、縮醛系方面,可舉出:1,4-二噁烷、四氫呋喃、2-甲基呋喃、四氫吡喃、二乙基縮醛等;在烴系方面,可舉出:己烷、庚烷、辛烷、異辛烷、輕石油、環己烷、甲基環己烷、甲苯、二甲苯、乙苯、苯乙烯、二乙烯苯等;在鹵烴系方面,可舉出:四 氯化碳、氯仿、二氯甲烷、二氯乙烷、1,1,1-三氯乙烷、1,1,2-三氯乙烷、三氯乙烯、四氯乙烯、1,1,1,2-四氯乙烷等;在多元醇及其衍生物系方面,可舉出:乙二醇、乙二醇一甲基醚、乙二醇一乙基醚、乙二醇一乙酸酯、二乙二醇、丙二醇、二丙二醇、丁二醇、己二醇、1,5-戊二醇、丙三醇一乙酸酯、丙三醇醚類、1,2,6-己三醇等;在脂肪酸系方面,可舉出:甲酸、乙酸、丙酸、丁酸、異丁酸、異戊酸、乳酸等;在氮化物系方面,可舉出:甲醯胺、N,N-二甲基甲醯胺、乙醯胺、乙腈等;在硫化合物系方面,可舉出:二甲基亞碸等。 Examples of the solvent include organic solvents. Examples of the organic solvent include alcohol, methanol, ethanol, n-propanol, isopropanol, n-butanol, isobutanol, second butanol, third butanol, isoamyl alcohol, 1 -Pentanol, n-hexanol, methylpentanol, etc.; ketones include methyl isobutyl ketone, methyl ethyl ketone, diethyl ketone, acetone, cyclohexanone, diacetone alcohol, etc. ; In terms of esters, methyl acetate, ethyl acetate, n-propyl acetate, isopropyl acetate, isobutyl acetate, n-butyl acetate, isoamyl acetate, n-pentyl acetate, propionic acid Methyl ester, ethyl propionate, methyl butyrate, ethyl butyrate, methyl acetate, methyl lactate, ethyl lactate, etc.; for ethers, acetals, 1,4-dioxane , Tetrahydrofuran, 2-methylfuran, tetrahydropyran, diethyl acetal, etc.; in terms of hydrocarbons, hexane, heptane, octane, isooctane, light petroleum, cyclohexane, Methylcyclohexane, toluene, xylene, ethylbenzene, styrene, divinylbenzene, etc.; in terms of halogenated hydrocarbons, there are: Carbon chloride, chloroform, dichloromethane, dichloroethane, 1,1,1-trichloroethane, 1,1,2-trichloroethane, trichloroethylene, tetrachloroethylene, 1,1,1 , 2-tetrachloroethane, etc.; in terms of polyols and their derivatives, ethylene glycol, ethylene glycol monomethyl ether, ethylene glycol monoethyl ether, ethylene glycol monoacetate , Diethylene glycol, propylene glycol, dipropylene glycol, butylene glycol, hexanediol, 1,5-pentanediol, glycerol monoacetate, glycerol ethers, 1,2,6-hexanetriol Etc.; in terms of fatty acid system, formic acid, acetic acid, propionic acid, butyric acid, isobutyric acid, isovaleric acid, lactic acid, etc.; in terms of nitride system, for example: methylamide, N, N- Dimethylformamide, acetamide, acetonitrile, etc.; for the sulfur compound system, dimethylsulfoxide, etc. may be mentioned.

有機溶劑當中,特佳為甲基異丁基酮、甲基乙基酮、環己酮、丙酮、甲苯、二甲苯、乙酸乙酯、1-戊醇等。此外,有機溶劑中,基於控制凝集性的目的,可以適當地混合醇、多元醇系溶劑來使用。這些有機溶劑,可以單獨使用,也可以混合使用,作為塗布組成物中有機溶劑總量,較佳為含有20質量%~90質量%,更佳為含有30質量%~80質量%,最佳為含有40質量%~70質量%。為了含粒子層的表面形狀的穩定化,較佳為併用沸點低於100℃的溶劑和沸點為100℃以上的溶劑。又,溶劑不限於有機溶劑。 Among the organic solvents, particularly preferred are methyl isobutyl ketone, methyl ethyl ketone, cyclohexanone, acetone, toluene, xylene, ethyl acetate, 1-pentanol and the like. In addition, among organic solvents, for the purpose of controlling agglomeration, alcohols and polyol-based solvents can be appropriately mixed and used. These organic solvents may be used alone or in combination. As the total amount of organic solvents in the coating composition, it is preferably 20% by mass to 90% by mass, more preferably 30% by mass to 80% by mass, and most preferably Contains 40% by mass to 70% by mass. In order to stabilize the surface shape of the particle-containing layer, it is preferable to use a solvent having a boiling point of less than 100°C and a solvent having a boiling point of 100°C or more. Also, the solvent is not limited to organic solvents.

塗布液中所含的粒子係指具有0.05~100μm的體積平均粒徑的粒子。作為塗布液中所含的粒子,例如,可較佳地舉出:交聯聚甲基丙烯酸甲酯、交聯甲基丙烯酸甲酯-苯乙烯共聚物、交聯甲基丙烯酸甲酯-丙烯酸甲酯共聚物粒子、交聯丙烯酸酯-苯乙烯共聚物 粒子、交聯聚苯乙烯粒子、交聯甲基丙烯酸甲酯-交聯改性丙烯酸酯共聚物粒子、三聚氰胺甲酸樹脂粒子、苯并胍胺甲醛樹脂粒子等樹脂粒子。其中,較佳為交聯聚甲基丙烯酸甲酯、交聯甲基丙烯酸甲酯-苯乙烯共聚物等。 The particles contained in the coating liquid refer to particles having a volume average particle diameter of 0.05 to 100 μm. As the particles contained in the coating liquid, for example, preferably, cross-linked polymethyl methacrylate, cross-linked methyl methacrylate-styrene copolymer, cross-linked methyl methacrylate-methacrylate Ester copolymer particles, cross-linked acrylate-styrene copolymer Resin particles such as particles, cross-linked polystyrene particles, cross-linked methyl methacrylate-cross-linked modified acrylate copolymer particles, melamine formic acid resin particles, benzoguanamine formaldehyde resin particles. Among them, crosslinked polymethyl methacrylate, crosslinked methyl methacrylate-styrene copolymer and the like are preferred.

作為上述粒子的一例,能舉出市售的樹脂粒子,例如,能使用綜研化學(股)製的Chemisnow(註冊商標),MX600、MX675、RX0855、MX800、SX713L、MX1500H等;或者是積水化成品工業(股)製的TECHPOLYMER(商品名),SSX108HXE、SSX108LXESSX-106TN、SSX-106FB、XX120S等。 As an example of the above-mentioned particles, commercially available resin particles can be cited, for example, Chemisnow (registered trademark) manufactured by Kken Chemical Co., Ltd., MX600, MX675, RX0855, MX800, SX713L, MX1500H, etc.; or Sekisui finished products TECHPOLYMER (trade name) manufactured by Industrial Co., Ltd., SSX108HXE, SSX108LXESSX-106TN, SSX-106FB, XX120S, etc.

能使塗布液中包含以下的物質。 The following substances can be contained in the coating liquid.

作為形成基質的結合劑聚合物,沒有特別的限定,較佳為在利用電離放射線等進行硬化後具有飽和烴鏈、或聚醚鏈作為主鏈的透光性的結合劑聚合物。此外,較佳為硬化後的主要的結合劑聚合物具有交聯構造。又,結合劑聚合物較佳為防眩層中(固體成分),構成55~94質量%。更佳為75~90質量%。 The binder polymer forming the matrix is not particularly limited, but is preferably a light-transmitting binder polymer having a saturated hydrocarbon chain or a polyether chain as the main chain after being hardened by ionizing radiation or the like. In addition, it is preferable that the main binder polymer after hardening has a cross-linked structure. In addition, the binder polymer is preferably in the antiglare layer (solid content), and constitutes 55 to 94% by mass. It is more preferably 75 to 90% by mass.

作為在硬化後具有飽和烴鏈作為主鏈的結合劑聚合物,較佳為由下述的第一群化合物所選出的乙烯性不飽和單體及它們的聚合物。此外,作為具有聚醚鏈作為主鏈的聚合物,較佳為由下述的第二群化合物所選出的環氧系單體及開環此等所致之聚合物。另外,這些單體類的混合物的聚合物也是較佳的。 As the binder polymer having a saturated hydrocarbon chain as a main chain after hardening, preferred are ethylenically unsaturated monomers selected from the first group of compounds described below and their polymers. In addition, as the polymer having a polyether chain as the main chain, it is preferably a polymer derived from an epoxy-based monomer selected from the second group of compounds described below and ring opening. In addition, polymers of mixtures of these monomers are also preferred.

聚合引發劑,係相對於上述單體100質量份,較佳為以聚合引發劑總量計,在0.1~15質量份的範圍使用,更佳為1~10質量份的範圍。 The polymerization initiator is preferably used in the range of 0.1 to 15 parts by mass based on the total amount of the polymerization initiator with respect to 100 parts by mass of the monomer, and more preferably in the range of 1 to 10 parts by mass.

接著,對於利用本實施形態的噴口的送液裝置,參照第3圖進行說明。有對與第2圖所示的結構同樣的結構賦予同一元件符號而省略說明的情況。包含粒子的流體202係貯藏於貯藏槽108。此貯藏槽108和第2貯藏槽130係透過流路的配管60進行流體連通。在送液裝置200中,在貯藏槽108與第2貯藏槽130之間,從上游側至下游側,將送液幫浦110、壓力計112、減壓脫氣裝置114、過濾濾器116、流量計118及噴口10設置於配管60的一部分。又,若送液裝置至少具備流路、噴口、和驅動源的話即可。 Next, the liquid-feeding device using the discharge port of the present embodiment will be described with reference to FIG. 3. The same structure as that shown in FIG. 2 may be given the same element number, and the description may be omitted. The fluid 202 containing particles is stored in the storage tank 108. The storage tank 108 and the second storage tank 130 are in fluid communication through the piping 60 of the flow path. In the liquid feeding device 200, between the storage tank 108 and the second storage tank 130, from the upstream side to the downstream side, the liquid feeding pump 110, the pressure gauge 112, the decompression deaeration device 114, the filter 116, and the flow rate The gauge 118 and the nozzle 10 are provided in a part of the piping 60. In addition, it is sufficient if the liquid supply device includes at least a flow path, a spout, and a drive source.

此處,配管60成為包含粒子的流體202通過的流路。若包含粒子的流體202能通過的話,流路之材質、形狀等便沒有限定。 Here, the piping 60 becomes a flow path through which the fluid 202 containing particles passes. If the fluid 202 containing particles can pass through, the material and shape of the flow path are not limited.

包含粒子的流體202係從貯藏槽108,利用供輸送流體用的驅動源的送液幫浦110壓送至第2貯藏槽130。經壓送的流體202係經過壓力計112、減壓脫氣裝置114、過濾濾器116及噴口10而透過配管60供給於第2貯藏槽130。 The fluid 202 containing particles is pressure-fed from the storage tank 108 to the second storage tank 130 by the liquid-feeding pump 110 of the driving source for transporting the fluid. The fluid 202 fed by pressure is supplied to the second storage tank 130 through the pipe 60 through the pressure gauge 112, the decompression deaeration device 114, the filter 116, and the spout 10.

能藉由使包含粒子的流體202通過本實施形態的噴口10來將流體202中的粒子的凝集體去凝集。其結果,能得到粒子被分散的流體202。 It is possible to deagglomerate the aggregates of particles in the fluid 202 by passing the fluid 202 containing particles through the nozzle 10 of this embodiment. As a result, a fluid 202 in which particles are dispersed can be obtained.

作為供輸送流體用的驅動源,例示了送液幫浦110,但幫浦的種類沒有限定。此外,作為驅動源,並非僅有幫浦,例如,也能將貯藏槽108配置在高處,而利用位能作為輸送流體的驅動源。此處,送液係指使包含粒子的流體通過流路而移動。 As a driving source for conveying fluid, the liquid-feeding pump 110 is exemplified, but the type of pump is not limited. In addition, as the driving source, not only the pump, for example, the storage tank 108 can also be arranged at a high place, and the potential energy can be used as the driving source for transporting the fluid. Here, the liquid feeding means to move the fluid containing particles through the flow path.

作為包含粒子的流體,例如,能例示:包含顏料的漆、包含顏料的墨、包含磁性微粒子的磁帶塗料、包含特夫綸微粒子的撥水劑(特夫綸為註冊商標)、包含乳膠的食品、包含乳膠的化妝品等。 Examples of fluids containing particles include paints containing pigments, inks containing pigments, magnetic tape coatings containing magnetic microparticles, water repellents containing Teflon microparticles (Teflon is a registered trademark), and foods containing latex , Cosmetics containing latex, etc.

藉由使例示的包含粒子的流體通過本實施形態的噴口,能將粒子的凝集體去凝集。此外,能抑制粒子的滯留。 By passing the exemplified fluid containing particles through the nozzle of this embodiment, the aggregates of particles can be deaggregated. In addition, the retention of particles can be suppressed.

流體意指氣體或液體。此外,粒子意指具有0.05~100μm的體積平均粒徑的粒子。 Fluid means gas or liquid. In addition, the particle means a particle having a volume average particle diameter of 0.05 to 100 μm.

[實施例] [Example]

以下,舉出實施例進一步具體說明本發明。以下實施例所示的材料、製造條件等,只要不脫離本發明的宗旨,皆能適宜變更。由此,本發明的範圍不限於以下的具體例。 Hereinafter, the present invention will be described more specifically with examples. The materials and manufacturing conditions shown in the following examples can be appropriately changed as long as they do not depart from the gist of the present invention. Therefore, the scope of the present invention is not limited to the following specific examples.

[試驗1] [Experiment 1]

對1000g的甲基乙基酮和甲基異丁基酮的混合溶劑(混合比率:11:89)添加3g的體積平均粒徑2.8μm的交聯丙烯酸酯-苯乙烯共聚物粒子,調製作為包含粒子的流體。 To 1000 g of a mixed solvent of methyl ethyl ketone and methyl isobutyl ketone (mixing ratio: 11:89), 3 g of cross-linked acrylate-styrene copolymer particles with a volume average particle diameter of 2.8 μm were added to prepare Particle fluid.

以1(kg/min)的流量,使所調製的流體通過具有110°的縮徑角度(縮徑面的角度α)、0mm的狹路長度、20mm的縮徑部長度、150mm的擴徑部長度、7°的擴徑角度(二次側內壁擴徑的角度β)、4mm的曲率半徑r、及7%的縮小率(狹窄開口的直徑/流入開口的直徑×100)的形狀的噴口。 At a flow rate of 1 (kg/min), the prepared fluid is passed through a reduction angle of 110° (angle α of the reduction surface), a narrow path length of 0 mm, a length of a reduced diameter portion of 20 mm, and an expansion diameter of 150 mm Degree, 7° diameter expansion angle (angle β of the secondary side inner wall expansion diameter), 4 mm curvature radius r, and 7% reduction ratio (narrow opening diameter/inflow opening diameter×100) .

[試驗2~21] [Experiment 2~21]

使在試驗1使用的流體通過表1所記載的形狀的噴口。除了變更噴口的形狀外,設為與試驗1相同的條件。 The fluid used in Test 1 was passed through the orifice of the shape described in Table 1. Except for changing the shape of the nozzle, the same conditions as in Test 1 were used.

(評價) (Evaluation)

用以下的去凝集的效果、有無滯留、及綜合評價來進行評價,將該評價記載於表1的各項目中。 Evaluation was performed by the following effects of deagglomeration, presence or absence, and comprehensive evaluation, and the evaluation is described in each item of Table 1.

(去凝集的效果) (Decondensation effect)

比較使流體通過噴口前、和使流體通過噴口後的粒子的凝集體的尺寸。藉由用光學顯微鏡觀察滴於鏡檢板的液體來觀測凝集體的尺寸。具體而言,用顯微鏡拍攝流體,由所得到的照片測定凝集體的長邊作為凝集體的尺寸。依以下方式求出去凝集前的凝集體的尺寸。從通過噴口前的塗布液隨機選擇10個凝集體,測定各凝集體的長邊。將長邊的平均值設為去凝集前的凝集體的尺寸。 Compare the size of the aggregate of particles before passing the fluid through the nozzle and after passing the fluid through the nozzle. Observe the size of the aggregates by observing the liquid dripped on the microscopic examination plate with an optical microscope. Specifically, the fluid is photographed with a microscope, and the long side of the aggregate is measured as the size of the aggregate from the obtained photograph. Determine the size of the agglomerate before going out to agglomerate as follows. Ten aggregates were randomly selected from the coating liquid before passing through the nozzle, and the long side of each aggregate was measured. The average value on the long side is the size of the aggregate before deagglomeration.

同樣地,依以下方式求出去凝集後的凝集體的尺寸。從通過噴口後的流體隨機選擇10個凝集體,測定各凝集體的長邊。將長邊的平均值設為去凝集後的凝集體的尺寸。 In the same way, the size of the aggregate after aggregation is determined as follows. Ten aggregates were randomly selected from the fluid after passing through the nozzle, and the long side of each aggregate was measured. Let the average value of the long side be the size of the aggregate after deagglomeration.

以去凝集後的(凝集體的尺寸/去凝集前的凝集體的尺寸)×100的比率,依以下3階段評價去凝集的效果。 The effect of deagglomeration was evaluated in the following three steps at a ratio of (aggregate size/aggregate size before deagglomeration)×100 after deagglomeration.

A:去凝集後的凝集體的尺寸對去凝集前的凝集體的尺寸的比率為5%以下。 A: The ratio of the size of aggregates after deagglomeration to the size of aggregates before deagglomeration is 5% or less.

B:去凝集後的凝集體的尺寸對去凝集前的凝集體的尺寸的比率為20%以下。 B: The ratio of the size of aggregates after deagglomeration to the size of aggregates before deagglomeration is 20% or less.

C:去凝集後的凝集體的尺寸對去凝集前的凝集體的尺寸的比率大於20%。 C: The ratio of the size of aggregates after deagglomeration to the size of aggregates before deagglomeration is greater than 20%.

(有無滯留) (With or without detention)

利用基於CFD(Computational Fluid Dynamics)模擬的流速分布觀測是否有粒子滯留在噴口的縮徑部。使用STAR-LT(CD-adapco Japan股份公司製)作為CFD模擬的軟體,使用市售的泛用個人電腦作為硬體。對於有無滯留,依以下3階段進行評價。此處,故障意指肇因於粒子的凝集的光學膜上紋路故障或點缺陷。對於紋路故障或點缺陷,測試係用目視檢查進行,在製造機方面係用面檢查機(自動照相機檢查機)進行檢查。 The flow velocity distribution based on CFD (Computational Fluid Dynamics) simulation was used to observe whether particles stayed in the reduced diameter part of the nozzle. Use STAR-LT (manufactured by CD-adapco Japan Co., Ltd.) as CFD simulation software, and use a commercially available general-purpose personal computer as hardware. For the presence or absence of the stay, the following three stages are evaluated. Here, the failure means a texture failure or a point defect on the optical film caused by aggregation of particles. For line faults or point defects, the test is performed by visual inspection, and for the manufacturing machine, a surface inspection machine (automatic camera inspection machine) is used for inspection.

A:無滯留,無故障之虞。 A: There is no retention and no risk of failure.

B:雖然容易滯留,但為沒有問題的等級。 B: Although it is easy to stay, it is a level with no problem.

C:有滯留,有發生故障的可能性。 C: There is stagnation and there is a possibility of failure.

(綜合評價) (Overview)

考慮去凝集的效果、及有無滯留,對於製造合適性依以下3階段進行評估。 Considering the effect of deagglomeration and the presence or absence of retention, the suitability of manufacturing is evaluated in the following three stages.

A:更佳(去凝集的效果、及有無滯留皆為A)。 A: Better (the effect of deagglomeration and the presence or absence of retention are both A).

B:可採用(去凝集的效果、及有無滯留皆為B以上,不包括綜合評價為A)。 B: Can be used (the effect of deagglomeration and the presence or absence of retention are both B or more, excluding the comprehensive evaluation of A).

C:不可採用(去凝集的效果、及有無滯留皆為C)。 C: Not applicable (the effect of deagglomeration and the presence or absence of retention are both C).

(評價結果) (Evaluation results)

如表1的試驗2~5、8~11、14、15、18及19所示,在使包含粒子的流體通過120~180°的縮徑角度α、0mm的狹路長度、2~10°的擴徑角度β、1~10mm的曲率半徑r、及7~18%的縮小率的噴口的情況下,得到B以上的綜合評價。 As shown in tests 2 to 5, 8 to 11, 14, 15, 18, and 19 of Table 1, when the fluid containing particles is passed through a reduction angle α of 120 to 180°, a narrow path length of 0 mm, and 2 to 10° In the case of a diameter expansion angle β, a radius of curvature r of 1 to 10 mm, and a nozzle with a reduction ratio of 7 to 18%, a comprehensive evaluation of B or more is obtained.

如試驗2~5中的試驗3、4所看到的,在將狹路長度、擴徑角度β、曲率半徑r、及縮小率設為一定的情況下,可藉由設為130~170°的縮徑角度α來得到A的綜合評價。 As seen in tests 3 and 4 in tests 2 to 5, when the length of the narrow path, the expansion angle β, the radius of curvature r, and the reduction rate are set to be constant, they can be set to 130 to 170° To obtain a comprehensive evaluation of A.

如試驗8~11中的試驗9、10所看到的,在將縮徑角度α、狹路長度、曲率半徑r、及縮小率設為一定的情況下,可藉由設為5~8°的擴徑角度β來得到A的綜合評價。 As can be seen from tests 9 and 10 in tests 8 to 11, when the diameter reduction angle α, the narrow path length, the radius of curvature r, and the reduction ratio are set to be constant, it can be set to 5 to 8° To obtain a comprehensive evaluation of A.

如試驗4、18、19中的試驗4、18所看到的,在將縮徑角度α、狹路長度、擴徑角度β、及曲率半徑r、設為一定的情況下,可藉由設為7~14%的縮小率來得到A的綜合評價。 As can be seen from tests 4, 18 in tests 4, 18, and 19, when the diameter reduction angle α, the narrow path length, the diameter expansion angle β, and the radius of curvature r are set to be constant, it can be set by Get a comprehensive evaluation of A for a reduction rate of 7-14%.

另一方面,在如試驗1、6超出120~180°的縮徑角度α的範圍的情況下,去凝集效果的評價為C。在如試驗7、12超出2~10°的擴徑角度β的範圍的情況下,去凝集效果的評價為C。在如試驗13、16超出1~10mm的曲率半徑r的範圍的情況下,去凝集效果的評價為B,有無滯留的評價為C。在如試驗17、20超出7~18%的縮小率的範圍的情況下,去凝集效果的評價為C。在如試驗21有狹路存在的情況下,去凝集效果的評價為C。推測是在通過狹路之際發生了再凝集。 On the other hand, when the reduction angle α of 120 to 180° is exceeded as in Tests 1 and 6, the evaluation of the deagglomerating effect is C. In the case where tests 7 and 12 exceed the range of the expansion angle β of 2 to 10°, the deagglomeration effect is evaluated as C. When the radius of curvature r of 1 to 10 mm is exceeded as in Tests 13 and 16, the evaluation of the deagglomerating effect is B, and the evaluation of the presence or absence of retention is C. In the case where the reduction ratio of 7 to 18% is exceeded as in Tests 17 and 20, the deagglomeration effect is evaluated as C. In the case where a narrow path exists as in Test 21, the deagglomeration effect is evaluated as C. It is speculated that re-agglomeration occurred while passing through the narrow road.

Figure 105118070-A0305-02-0022-1
Figure 105118070-A0305-02-0022-1

10‧‧‧噴口 10‧‧‧ spout

12‧‧‧噴口本體 12‧‧‧ nozzle body

14‧‧‧流入開口 14‧‧‧Inflow opening

16‧‧‧狹窄開口 16‧‧‧Narrow opening

18‧‧‧一次側內壁 18‧‧‧Inner side wall

20‧‧‧縮徑部 20‧‧‧Reduction

22‧‧‧曲面 22‧‧‧Curved

24‧‧‧縮徑面 24‧‧‧Reduced diameter surface

26‧‧‧流出開口 26‧‧‧ Outflow opening

28‧‧‧二次側內壁 28‧‧‧Secondary side inner wall

30‧‧‧擴徑部 30‧‧‧Expansion Department

32‧‧‧一次側凸緣 32‧‧‧primary side flange

34‧‧‧溝 34‧‧‧Ditch

36‧‧‧二次側凸緣 36‧‧‧Secondary flange

38‧‧‧溝 38‧‧‧Ditch

60‧‧‧配管 60‧‧‧Piping

ID1~ID3‧‧‧直徑 ID1~ID3‧‧‧Diameter

OD‧‧‧外徑 OD‧‧‧Outer diameter

r‧‧‧曲率半徑 r‧‧‧ radius of curvature

α、β‧‧‧角度 α、β‧‧‧Angle

Claims (7)

一種噴口,具備:噴口本體;流入開口,位於該噴口本體的流入側;流出開口,位於該噴口本體的流出側;縮徑部,係在一次側內壁構成,該一次側內壁具有自該流入開口連續之曲率半徑為1~10mm的曲面、和自該曲面連續至狹窄開口且以120~180°的角度縮徑至該狹窄開口的縮徑面;及擴徑部,係在二次側內壁構成,該二次側內壁從該狹窄開口連續至該流出開口且以2~10°的角度擴徑,該噴口本體係沿著軸向延伸,且該流入側和該流出側係分別位於該噴口本體之軸向的兩側,該縮徑面的該角度,係意指在該噴口本體的中心軸向之剖視下,該縮徑面與該狹窄開口連接的兩個位置中分別與該縮徑面接觸的切線的夾角,該狹窄開口的直徑對該流入開口的直徑的比為0.07~0.18。 A spout, comprising: a spout body; an inflow opening, located on the inflow side of the spout body; an outflow opening, located on the outflow side of the spout body; a reduced-diameter portion, formed on the inner wall of the primary side, the inner wall of the primary side A curved surface with a continuous curvature radius of 1 to 10 mm at the inflow opening, and a reduced diameter surface continuous from the curved surface to the narrow opening and reduced in diameter at an angle of 120 to 180° to the narrow opening; and the enlarged diameter portion is on the secondary side The inner wall structure, the inner wall of the secondary side continues from the narrow opening to the outflow opening and expands in diameter at an angle of 2 to 10°, the nozzle system extends along the axial direction, and the inflow side and the outflow side are respectively Located on both sides of the nozzle body in the axial direction, the angle of the diameter-reducing surface means that, in a cross-sectional view of the central axis of the nozzle body, the diameter-reducing surface and the narrow opening are respectively connected in two positions The angle of the tangent line contacting the reduced diameter surface, the ratio of the diameter of the narrow opening to the diameter of the inflow opening is 0.07 to 0.18. 如請求項1的噴口,其中該一次側內壁的該縮徑面的角度為130~170°。 The nozzle of claim 1, wherein the angle of the diameter-reducing surface of the inner wall of the primary side is 130 to 170°. 如請求項1或2的噴口,其中該二次側內壁的擴徑角度為5~8°。 The nozzle of claim 1 or 2, wherein the expansion angle of the inner wall of the secondary side is 5 to 8°. 如請求項1或2的噴口,其中該狹窄開口的直徑對該流入開口的直徑的比為0.07~0.14。 The nozzle of claim 1 or 2, wherein the ratio of the diameter of the narrow opening to the diameter of the inflow opening is 0.07~0.14. 一種送液裝置,具備:流路,供包含粒子的流體通過;如請求項1至4中任一項的噴口,設置於該流路的一部分,供該流體通過;和驅動源,用於將該流體送至該流路和該噴口。 A liquid-feeding device, comprising: a flow path for passing a fluid containing particles; the nozzle of any one of claims 1 to 4 is provided in a part of the flow path for passing the fluid; and a driving source for The fluid is sent to the flow path and the spout. 一種塗布裝置,具備:流路,供包含粒子的塗布液通過;如請求項1至4中任一項的噴口,設置於該流路的一部分,供該塗布液通過;和塗布頭,設置於該噴口的下游側。 A coating device, comprising: a flow path through which a coating liquid containing particles passes; the nozzle of any one of claims 1 to 4 is provided in a part of the flow path for the coating liquid to pass through; and a coating head is provided in The downstream side of the nozzle. 一種光學膜的製造方法,包含下述步驟:從如請求項6的塗布裝置,將包含粒子的塗布液供給於被連續搬送的網狀物,形成塗膜;和使該塗膜乾燥、及/或硬化。 A method of manufacturing an optical film, comprising the steps of: supplying a coating solution containing particles from a coating device as described in claim 6 to a web that is continuously transported to form a coating film; and drying the coating film, and/or Or hardened.
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